Adjustable gauge for sewing machines



June 3, 1930. A. NLVWENZEL 1,761,856

ADJUSTABLE GAUGE FOR SEWiNG MACHINES Filed Dec. 17. 1927 INVENTOR ATTORNEY 9 views:

' Patented June 3, 1930 UNITED. STATES PATENT OFFICE y ANN MADELINE wnNz EL, or BROOKLYN, NEW Yonx ADJUSTABLE GAUGE FOB SEWING MACHINES I, 1. 1 i Applicationfiled December 17,1927. Serial No. 240,812.

for lifting the pressure mem er from con tact with the material.

, With these and other objects in view which will become apparent in the following description, my invention consists in the novel 1 combination'of parts, as will be more fully described and pointed out in the claims.

Referring to thefollowing drawings form ing a part of this specification in which like numerals designate like parts in all of the Figure 1 is a perspective view of the gauge members with some parts of asewing machine. v r

Figure 2 is a front elevation of the gauge 25 unit. v

Figure 3 is a plan viewof the gauge un t with a fragment of material shown in position for stitching.

Figure 4 is an end view of the gauge unit :30 with part of the sewing machine in dot and dash lines.

Figure 5 is a section taken on the lines 55 of Figure 3.

In Figure 1 I have shown some parts of a sewing machine,'namel y, a throat plate 10, part of a foot bar 12, a stitching needle 14 and a feed dog 15, all of which are standard parts on all sewing machines.

A gauge unit generally designated by the reference character 16 is slidably mounted on the bar 18 attached to the. sewing machine.

v The unit 16 has abase portion 20, on the lower edge of which are cut rack teeth 22 adapted to engage the teethof a pinion 24 journaled' in the frame of thesewing machine, as shown in Figure 4. A knurled knob I 26 is formed as an integral part of the pinion 24. j s An adjustable braid lapping rod 21 is slid- 9 ably mounted in a lug 23 on the base por- The opposite side tion and has at one end a screw which passes through an ear 27 attached to the rod 21, through a slot 29and is threaded in the bar 18. By tightening the screw 25 the rod 21 is held secure in the adjusted position.

A housing 28 containing an adjustable edge guide 30 and pressure arm 32, is pivotally mounted on a lug 34 extending" upward from the base portion 20- at 36. j

V A head 38, formed on a flatlsprin'g member 60 40 secured to a part of the housing 28, en gages a wire 42 suspended between the side walls 44 formed on theupper surface of the base member 2O;

' Also forming a part of the housing 28 is a braidguide 46. 1 1

j The edge guide" 30 is'formed toengage curved surface ll of the throat plate 10 and has its upper edge 48 bent ata right angle whichis adapted to engage one edge ofthat part of a braidform such 6' i A p as used in'making hats and the like. 7 a

7 I of; thesaid edge guide 30 serves as a guide for the advancing braid, which passes between'this guide 30" and the 5 e aforementioned guide 46. A resilientmemher 4? is secured to the .face of the guide 46 with its forward edge-49 free to engage and place a slight tension on the advancing braid.

A rod 50 secured to the edge guide 30' 0 passes through a hole 52 in-the'housin 28. Back teeth 54 are formed onthis r0 50, which engage apinion 56 mounted on a shaft 58 and journaled inthe housing 28. A thumb screw 60 secured to the-other end of the shaft 58 is located on top of the fhousing'28.

The pressure arm 32'is a suitable resilient member secured to the nose 62 0f a bar 64. a

' The bar 64 is pivotedto "a similar bar 66 at 67 as shown'in Figure 5, both ofsaid bars being slidably mounted ina slot 68 in the top of-the housing 28. Rack teeth 70 formed on the lower edge of bar 66 engage a pinion -72 mounted o'n'a shaft/74 and journaledin the housing 28. A thumb screw 7 6 secured to the other end of'this shaft extends outward from the front of the'housing 28. A

' Rotation of the thumb screw 76 will adjust the location of the pressure arm '32 so that said arm will be directly over the braid to 109 hold it flat while the braid is fed toward the stitching needle 14.

A plate '78 screwed to the housing 28 bridges the slot 68 and prevents the bar 66 from leaving said slot,

The bar 64 has a groove 80 cut on the back face thereof, which is adapted to engage a spring compressed plunger 82 mounted inthe I housing can be lifted tothe..positionJshown in dot and dash lines of Figure 2 by means of rear of thehousing 28. A'screw 841is used to adjust the tension of the spring 86:

to the position shown in Figure5. The'entire a knob 67. v

To operate this device the operator first places the braid or other sultable materral'ln I the correct position under the needle 14 for;

stitching.

, A sewing achine built for zig-zag stitch;

ing, the/stitch of which is shown in igure .3,' is describedin a copending application serial No. 117,070,-filed June 19, 1926, by August The housing 28 whichat this time would be in the lifted position as shown in dot and dash lines of Figure 2, would, now be lowered and adjustedfl by means'of the knurled knob '26 to theposition shown'in Figure 3 With the a braid against the surface ,of the; guide plate 4:6 and resilient member 47. y

The edge guide is now adjusted by: means of the thumb screw until its back surface comes in contactflwith'the other braid.

[The pressure arm' which 1s 1n vthe .posltion.

edge of the V guide "member. The bar 64 islifted by-means of knob 65,;

cal bodily movement, a guide face on said housing and a resilient guide member on said I face. I

a housing pivoted on said base containing an adjustable guide member provided with angularly disposed working faces, a horizontals 1y adjustable vertically pivoted'pressure arm," I

provided with a resilient anda' guide face 5-;Aga ge devi e l comprisin g a base, a

4:. A gauge device comprising a base and: V

housing carried thereby and provided'with a said arm mounted [on said housing for arcuate movement from between said planes.

Signed at New York city in the county of New Yorkand State ofNew York this 13th I day of December, A. D. 1927.

' shown in Figure 5, is lowered until the slot engages the plunger 82 after same has been adjustedby 'meansof the thumb screw 7cm locate .the arm 32 directly over the eenter. of I the braid.?; H o

This pressure arm provides the proper ten-t sion to the braid and preve'nts bulging of the said braid as it isfed inward. v

claim! 5 .s 1. A gaugejdevice comprising abase," a

housing pivotedon saidibase, a gui'de in said housing, a pressure'arm'pivotally nounted on said h=ousingforvertical bodily movement, a guide face onsaidhousing and-a reslllent guide memberon said face.

; 2.; A gauge-device'comprisingan adjustn able sliding'jbase, a housing pivoted onsaid;

base, an adjustable guide in saidihousing,ia slide adjustable on said housing, a pressure arm pivoted to said slide,- a guide face on i said housing and alresilientguide member on saidface. n -V .3; ,A gauge device comprising .annadjustablesliding base, a-lapp'ingrod mountedon said "base, a housing pivoted on said base, an adjustable guide provided with work engagingfacesangularly disposed, said guidebeing 7 mounted -in 7 said housing, a pressure garm;

pivotallysmounted onasaid housing forverti:

guide face, a guide carried by said housing in" A V spaced relation to said guide face, and a pres- --sure arm for-holding work between the vertical planes of saidguideandsaid guide face 80 A 

